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magarvo · 2017-08-24, 23:46

I too am having the same issue. I'm unable to get GRUB2 to search for the boot.cfg files when chainloading from iPXE.

Its working fine when the grubx64.efi is provided over DHCP. However the same functionality is not available through iPXE chainloading.

See the TFTP log for iPXE chainload to GRUB2:

Code:

Aug 24 23:25:09 dhcpd: DHCPDISCOVER from 00:50:56:83:f0:cc via ens192

Aug 24 23:25:09 dhcpd: DHCPOFFER on 82.150.110.231 to 00:50:56:83:f0:cc via ens192

Aug 24 23:25:13 dhcpd: DHCPREQUEST for 82.150.110.231 (82.150.110.46) from 00:50:56:83:f0:cc via ens192

Aug 24 23:25:13 dhcpd: DHCPACK on 82.150.110.231 to 00:50:56:83:f0:cc via ens192

Aug 24 23:25:13 in.tftpd[7636]: RRQ from 82.150.110.231 filename ipxe/snponly.efi

Aug 24 23:25:13 in.tftpd[7636]: tftp: client does not accept options

Aug 24 23:25:13 in.tftpd[7637]: RRQ from 82.150.110.231 filename ipxe/snponly.efi

Aug 24 23:25:13 in.tftpd[7637]: Client 82.150.110.231 finished ipxe/snponly.efi

Aug 24 23:25:15 dhcpd: DHCPDISCOVER from 00:50:56:83:f0:cc via ens192

Aug 24 23:25:16 dhcpd: DHCPOFFER on 82.150.110.230 to 00:50:56:83:f0:cc via ens192

Aug 24 23:25:18 dhcpd: DHCPREQUEST for 82.150.110.230 (82.150.110.46) from 00:50:56:83:f0:cc via ens192

Aug 24 23:25:18 dhcpd: DHCPACK on 82.150.110.230 to 00:50:56:83:f0:cc via ens192

Aug 24 23:25:18 in.tftpd[7639]: RRQ from 82.150.110.230 filename ipxe_boot.ipxe

Aug 24 23:25:18 in.tftpd[7639]: Client 82.150.110.230 finished ipxe_boot.ipxe

Aug 24 23:25:18 in.tftpd[7640]: RRQ from 82.150.110.230 filename grub2/grub.cfg-01-00-50-56-83-f0-cc

Aug 24 23:25:18 in.tftpd[7640]: Client 82.150.110.230 finished grub2/grub.cfg-01-00-50-56-83-f0-cc

Aug 24 23:25:38 in.tftpd[7648]: RRQ from 82.150.110.230 filename grub2/grubx64.efi

Aug 24 23:25:38 in.tftpd[7648]: Client 82.150.110.230 finished grub2/grubx64.efi

TFTP log for DHCP TFTP delivery of grub2:

Code:

Aug 24 23:24:20 in.tftpd[7555]: RRQ from 82.150.110.231 filename grub2/grubx64.efi

Aug 24 23:24:20 opbuildproxy03p in.tftpd[7555]: tftp: client does not accept options

Aug 24 23:24:20 in.tftpd[7556]: RRQ from 82.150.110.231 filename grub2/grubx64.efi

Aug 24 23:24:20 in.tftpd[7556]: Client 82.150.110.231 finished grub2/grubx64.efi

Aug 24 23:24:20 in.tftpd[7557]: RRQ from 82.150.110.231 filename /grub2/grub.cfg-01-00-50-56-83-f0-cc

Aug 24 23:24:20 in.tftpd[7557]: Client 82.150.110.231 finished /grub2/grub.cfg-01-00-50-56-83-f0-cc

Aug 24 23:24:20 in.tftpd[7558]: RRQ from 82.150.110.231 filename /EFI/redhat/x86_64-efi/command.lst

Aug 24 23:24:20 in.tftpd[7558]: Client 82.150.110.231 File not found /EFI/redhat/x86_64-efi/command.lst

Aug 24 23:24:20 in.tftpd[7559]: RRQ from 82.150.110.231 filename /EFI/redhat/x86_64-efi/fs.lst

Aug 24 23:24:20 in.tftpd[7559]: Client 82.150.110.231 File not found /EFI/redhat/x86_64-efi/fs.lst

Aug 24 23:24:20 in.tftpd[7560]: RRQ from 82.150.110.231 filename /EFI/redhat/x86_64-efi/crypto.lst

Aug 24 23:24:20 in.tftpd[7560]: Client 82.150.110.231 File not found /EFI/redhat/x86_64-efi/crypto.lst

Aug 24 23:24:20 in.tftpd[7561]: RRQ from 82.150.110.231 filename /EFI/redhat/x86_64-efi/terminal.lst

Aug 24 23:24:20 in.tftpd[7561]: Client 82.150.110.231 File not found /EFI/redhat/x86_64-efi/terminal.lst

Aug 24 23:24:20 in.tftpd[7562]: RRQ from 82.150.110.231 filename /grub2/grub.cfg-01-00-50-56-83-f0-cc

Aug 24 23:24:20 in.tftpd[7562]: Client 82.150.110.231 finished /grub2/grub.cfg-01-00-50-56-83-f0-cc

Aug 24 23:24:20 in.tftpd[7563]: RRQ from 82.150.110.231 filename /grub2/grub.cfg-01------

Aug 24 23:24:20 in.tftpd[7563]: Client 82.150.110.231 File not found /grub2/grub.cfg-01------